Synthesis and biological activity of some unsaturated quaternary ammonium salts

1992 ◽  
Vol 26 (2) ◽  
pp. 151-153
Author(s):  
A. Zh. Gevorkyan ◽  
N. R. Oganesyan ◽  
Dzh V. Grigoryan ◽  
V. M. Samvelyan ◽  
E. G. Dzhanpoladyan ◽  
...  
Keyword(s):  
Biological Activity ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts

scholarly journals Biological Activity of Quaternary Ammonium Salts and Their Derivatives

Pathogens ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 459 ◽  
Author(s):  
Dobrawa Kwaśniewska ◽  
Ying-Lien Chen ◽  
Daria Wieczorek
Keyword(s):  
Antimicrobial Activity ◽  
Biological Activity ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Food Spoilage ◽  
Biocidal Activity ◽  
Positive Role ◽  
Current State ◽  
Potential Use

Besides their positive role, microorganisms are related to a number of undesirable effects, including many diseases, biodeterioration and food spoilage, so when their presence is undesired, they must be controlled. Numerous biocides limiting the development of microorganisms have been proposed, however, in this paper the biocidal and inhibitory activity of quaternary ammonium salts (QASs) and their zwitterionic derivatives is addressed. This paper presents the current state of knowledge about the biocidal activity of QAS and their derivatives. Moreover, the known mechanisms of antimicrobial activity and the problem of emerging resistance to QAS are discussed. The latest trends in the study of surfactants and their potential use are also presented.

Synthesis and biological activity of quaternary ammonium salts consisting of a divinylsulfoxide and piperazine oligomer

1989 ◽  
Vol 23 (3) ◽  
pp. 209-212
Author(s):  
M. G. Voronkov ◽  
T. V. Nefedova ◽  
V. B. Kazimirovskaya ◽  
T. V. Zelinskaya ◽  
T. Ya. Pushechkina ◽  
...  
Keyword(s):  
Biological Activity ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts

Synthesis and Evaluation of Biological Activity of the Quaternary Ammonium Salts of Lupane-, Oleanane-, and Ursane-Type Acids

Synthesis ◽  
2010 ◽  
Vol 2010 (22) ◽  
pp. 3839-3848 ◽  
Author(s):  
Jan Sarek ◽  
David Biedermann ◽  
Barbara Eignerova ◽  
Marian Hajduch
Keyword(s):  
Biological Activity ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts

scholarly journals Synthesis and characterization of bio-based quaternary ammonium salts with gibberellate or l-tryptophanate anion

2020 ◽  
Vol 151 (9) ◽  
pp. 1365-1373
Author(s):  
Daria Szymaniak ◽  
Juliusz Pernak ◽  
Tomasz Rzemieniecki ◽  
Damian Krystian Kaczmarek ◽  
Roman Andrzejak ◽  
...  
Keyword(s):  
Biological Activity ◽  
Plant Growth ◽  
Gibberellic Acid ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Biologically Active ◽  
Ammonium Salts ◽  
Ionic Form ◽  
Natural Substances ◽  
High Yields

Abstract Numerous biologically active acids can be transformed into an ionic form in a facile way and combined with appropriate quaternary ammonium cation to improve their application properties or biological activity. This study describes the synthesis of new quaternary ammonium salts with anions of gibberellic acid, a common plant growth regulator from the gibberellin group, or l-tryptophan, an important precursor of auxin biosynthesis. The surface-active tetrapentylammonium ion and natural substances such as acetylcholine, choline, and quinine were the sources of cations. Novel salts of gibberellic acid and l-tryptophan were obtained with high yields exceeding 97% as a result of the metathesis reaction or the neutralization of quaternary ammonium hydroxides. Phase transition temperatures, thermal and chemical stability, and solubility in solvents with different polarities were determined for all obtained salts. On the basis of studies regarding the influence of synthesized salts on the post-harvest longevity and quality of leaves of Convallaria majalis, it was established that the biological activity of the natural plant regulators in most cases was maintained. Therefore, it can be concluded that the conversion of the active substance into the form of a quaternary ammonium salt results in obtaining novel forms of plant growth regulators with favourable physicochemical properties while maintaining the efficacy of the biological active ingredients. Graphic abstract

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